/* CoralCube | Massively Multiplayer Online Role-Playing Game(MMORPG) Emulator.
|* 
|* Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
|*               2008-2010 TrinityCore <http://www.trinitycore.org/>
|*               2008-2010 CoralCube <http://www.CoralCube.com/>
|*
|* This program is free software. You can redistribute it and/or modify it under the terms of 
|* the GNU General Public License as published by the Free Software Foundation, either 
|* version 2 of the License.
|*
|* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY, 
|* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
|* See the GNU General Public License for more details.
|*
|* You should have received a copy of the GNU General Public License along with this program. 
|* If not, see <http://www.gnu.org/licenses/>.
|*/

#ifndef CORE_BYTECONVERTER_H
#define CORE_BYTECONVERTER_H

/** ByteConverter reverse your byte order.  This is use
for cross platform where they have different endians.
*/

#include "Define.h"
#include<algorithm>

namespace ByteConverter
{
    template<size_t T>
    inline void convert(char *val)
    {
        std::swap(*val, *(val + T - 1));
        convert<T - 2>(val + 1);
    }

    template<> inline void convert<0>(char *) { }
    template<> inline void convert<1>(char *) { }            // ignore central byte

    template<typename T> inline void apply(T *val)
    {
        convert<sizeof(T)>((char *)(val));
    }
}

#if CORE_ENDIAN == CORE_BIGENDIAN
template<typename T> inline void EndianConvert(T& val) { ByteConverter::apply<T>(&val); }
template<typename T> inline void EndianConvertReverse(T&) { }
#else
template<typename T> inline void EndianConvert(T&) { }
template<typename T> inline void EndianConvertReverse(T& val) { ByteConverter::apply<T>(&val); }
#endif

template<typename T> void EndianConvert(T*);         // will generate link error
template<typename T> void EndianConvertReverse(T*);  // will generate link error

inline void EndianConvert(uint8&) { }
inline void EndianConvert( int8&) { }
inline void EndianConvertReverse(uint8&) { }
inline void EndianConvertReverse( int8&) { }

#endif
